6-Foot GFCI (ground fault circuit interrupter) adapter extension cord. Features a quad box with 20-amp outlets and a 20-amp plug. GFCI provides personal protection from ground faults and open neutral conditions anywhere electrical equipment is used. Compact, weather and rain proof, and engineered to handle rugged conditions of any jobsite. All of the models feature molded connectors, 12-gauge safety yellow cord, heavy-duty strain relief, reinforced blades and pins, and manual test/reset buttons with industrial grade relays. Duplex boxes are made of high impact resin with a slant roof design to prevent water entry. Receptacles accommodate large plugs. SJTW rated 20-amp/120-volt/2500-watt.